Chassis
generic / SAE
C0551
Longitudinal Acceleration Sensor Circuit/Open
Open circuit on the longitudinal acceleration sensor (used by ESP/ESC for braking-direction stability).
SystemChassis
Typegeneric / SAE
GroupC0
Range / number5 / 51
Possible causes
- Wiring open high
- Pin pushed back out of connector body low
- Cracked solder joint inside the module or sensor low
Symptoms
- ABS warning light on
- ESC/stability control deactivated
- Possible reduced brake assist
- Speedometer may behave erratically
Inspection / repair
- Difficulty: medium
- DIY: shop recommended
- Estimated cost: 150–1200 €
- Estimated time: 1–4 h
- Component: longitudinal accel sensor
- Component: sensor wiring
- MIL / check engine light
- limp mode possible
Sources
References
sae:J2012